package com.liux.config;

import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginHandlerInterceptor  implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //登录成功之后,应该有用户的session
        Object loginUser = request.getSession().getAttribute("loginUser");
        System.out.println("-------->"+loginUser);
        if(loginUser == null){//没有登录
            request.setAttribute("msg","没有权限,请先登录");
            request.getRequestDispatcher("/index.html").forward(request,response);
            return false;
        }else{
            return  true;
        }



    }
}
